Home / 328,955,063.80-493,243,638.90-98,889,662.20

Finding the Fourth Proportional to 328,955,063.80, 493,243,638.90 and 98,889,662.20

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Solution

The fourth proportional to 328,955,063.80, 493,243,638.90 and 98,889,662.20 is: 148,277,689.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,955,063.80 : 493,243,638.90 = 98,889,662.20 : x
  2. Step 2: Convert to fraction form
    328,955,063.80/493,243,638.90 = 98,889,662.20/x
  3. Step 3: Cross multiply
    328,955,063.80x = 493,243,638.90 × 98,889,662.20
  4. Step 4: Simplify right side
    328,955,063.80x = 48,776,696,833,119,776
  5. Step 5: Solve for x
    x = 48,776,696,833,119,776/328,955,063.80
  6. Step 6: Final answer
    x = 148,277,689.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.